Home / 863,705,467.44-1,191,909,954.96-467,227,479.68

Finding the Fourth Proportional to 863,705,467.44, 1,191,909,954.96 and 467,227,479.68

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Solution

The fourth proportional to 863,705,467.44, 1,191,909,954.96 and 467,227,479.68 is: 644,771,979.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,705,467.44 : 1,191,909,954.96 = 467,227,479.68 : x
  2. Step 2: Convert to fraction form
    863,705,467.44/1,191,909,954.96 = 467,227,479.68/x
  3. Step 3: Cross multiply
    863,705,467.44x = 1,191,909,954.96 × 467,227,479.68
  4. Step 4: Simplify right side
    863,705,467.44x = 556,893,084,255,503,616
  5. Step 5: Solve for x
    x = 556,893,084,255,503,616/863,705,467.44
  6. Step 6: Final answer
    x = 644,771,979.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.